CVE-2026-55489

Katalog CVE

CVSS 4.9 · Medium EPSS 0,31%

Kerentanan Authorization Bypass Through User-Controlled Key. Skor CVSS 3.1 4.9 (Medium) menurut github.com.

Deskripsi (NVD)

BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton presenters could submit a presentationId through /api/graphql that identified a presentation belonging to another meeting. akka-bbb-apps/src/main/scala/org/bigbluebutton/core/apps/presentationpod/RemovePresentationPubMsgHdlr.scala did not verify the presentation's meeting identifier before deletion, allowing a presenter who knew the identifier to delete another meeting's presentation and disrupt its availability. This issue is fixed in version 3.0.29.

Rincian

Terbit di NVD

20 Agustus 2026

Terakhir diubah

16 September 2026

Status NVD

Deferred

CVSS 3.1

4.9 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-639: Authorization Bypass Through User-Controlled Key

EPSS (30 hari)

0,31% peluang dieksploitasi; lebih tinggi dari 22,1% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/bigbluebutton/bigbluebutton/commit/c9e93f9af07b9661e286d101b83cbccb891c551f
• https://github.com/bigbluebutton/bigbluebutton/releases/tag/v3.0.29
• https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-jxpq-r3h3-p75g